BIOLOGY HIGH SCHOOL

Ozone is both helpful and harmful to life on Earth.
true or false

Answers

Answer 1
Answer: It is true that ozone is both helpful and harmful to life on Earth. It is helpful when it absorbs radiation and rays from the Sun, but it is harmful when we breathe it in, because it is found in oxygen. 

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Parts of a plant that are underground are called , while those above ground are called .
Which phrase best describes osmosis? A. the process by which the cytoplasm physically divides B. the process of DNA synthesis C. the process where a selectively permeable membrane allows the movement of water through it D. the process where distribution of molecules is balanced out by their movement
Which is the result of breeding individuals of different parentage?genetic diseasehybrid vigorgenetic engineeringnatural selection
The __________ lobe contains the primary sensory cortex, which controls sensations such as touch or pressure
Which virus has a structure that includes an outer lipid bilayer that is studded with proteins?

Which of these statements best defines the term Middle Ages?A. The period before the growth of the Catholic Church around the world.
B. The period of interaction beween the Islamic and Mongol empires.
C. The period between the Greek and the Roman dominance over European culture.
D. The period following the decline of the Roman Empire in Europe.

Answers

I think the correct answer from the choices listed above is option D. The term Middle Ages is best defined by the period following the decline of the Roman Empire in Europe. This period lasted from 5th century to the 15th century. Hope this answers the question. Have a nice day.

Answer: The period following the decline of the Roman Empire in Europe.

Explanation: A p e x

DOES ANYONE KNOW THIS ANSWER PLEASE

Answers

It’s a facilitated diffusion!
Facilitated diffusion= high to low concentration= has a protein channel

Which of the following describes a pod?A. A community of fish
B. A group of penguins
C. A set of pelicans
D. An assembly of dolphins

Answers

Answer:

D. An assembly of dolphins

Explanation:
Both answers C. and D. are correct. Most marine animals live in pods like seals, whales, and walrus. A. is called a school of fish while B. is a colony of penguins. :(

Which of the following fossils is NOT found within the rock layers of the Grand Canyon?A. trilobites
B. dinosaurs
C. stromatolites
D. armored fishes

Answers

the answer is dinosaurs

Answer is armored fish.

Blood that leaves the heart for the body passes through a large blood vessel called thea. pulmonary vein.
b. pulmonary artery.
c. aorta.
d. vena cava.

Answers

If i'm not mistaken, it's the aorta

Many different species of songbirds migrate into the United States and Canada from Central and South America each summer in order to take advantage of the caterpillars and other insects that hatch in the northern forests during the summer. Over the past several decades songbird populations have been declining. How might a decrease in the number of songbirds be expected to affect the trees in a northern forest?

Answers

The main way in which a decrease in the number of songbirds might be expected to affect the trees in a northern forest is that the would be overrun with more instincts due to a lack or predators.  

  The trees in the northern hemisphere will be very negatively effected by the declining numbers of the migrating songbirds.

  The reason for that is that the songbirds are the predators of the caterpillars. With the declining number of the songbirds, the caterpillars will grow in numbers.

  The caterpillars are feeding on the leaves of the trees. As the numbers of the caterpillars grow, they will eat more and more leaves from the trees, thus making huge problems for the trees because they will not be able to properly perform the photosynthesis which is crucial for their survival. The trees will start to get diseased and lot of forests in the Northern Hemisphere will be destroyed.
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